I stopped doing quests until Outlands when I could p-level with my toons with a 70 pally.

But before that, I managed to get a lot of level 70, and I've used my own notes to quests.

I preferred my notes because it was more of a step by step of where to do such as:
1. Go to Place (xx, yy)
2. Get Quest (Min Level/Quest Level) "Quest Name" from NPC (xx, yy)
etc.
Do "Quest Name" - objective (xx, yy), other notes.
Turn in "Quest Name" NPC (xx, yy) -- get Quest Chain Name" 2 of 5

I also add specific loot I wanted for my character and research them ahead of time while bored @ work. Thottbot, Allakhazam, (before) and WoWhead now are great resource.